9 Advanced PostgreSQL Features I Wish I Knew Sooner
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A practical tour of nine underused PostgreSQL features that can replace complex application-level logic with native database capabilities. Covered features include EXCLUDE constraints for preventing overlapping ranges, CHECK constraints for row-level validation, GENERATED columns for derived data, DISTINCT ON as a concise
Table of contents
Constraints Beyond The BasicsGENERATED Columns: Let The Database Do The MathDISTINCT ON: The GROUP BY ShortcutFILTER Clause: Cleaner Conditional AggregatesPARTITION BY: Window Functions For The WinUPSERT With ON CONFLICT: Insert Or Update In One QueryComposite Types: Custom Data Structures In Our SchemaRecursive CTEs: Traverse Hierarchies With SQLConclusionSort: